Java读取数据库表的示例代码

package com.easycrud.builder;
import com.easycrud.utils.PropertiesUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.sql.*;

public class BuildTable {
    private static final Logger logger = LoggerFactory.getLogger(BuildTable.class);
    private static Connection conn = null;
    
    private static String SQL_SHOW_TABLE_STATUS = "show table status";
    
    static {
        String driverName = PropertiesUtils.getString("db.driver.name");
        String url = PropertiesUtils.getString("db.url");
        String user = PropertiesUtils.getString("db.username");
        String passWord = PropertiesUtils.getString("db.password");
        try {
            Class.forName(driverName);
            conn = DriverManager.getConnection(url,user,password);
        } catch (Exception e) {
            logger.error("数据库连接失败",e);
        }
    }
    
    public static void getTables() {
        PreparedStatement ps = null;
        ResultSet tableResult = null;
        try{
            ps = conn.prepareStatement(SQL_SHOW_TABLE_STATUS);
            tableResult = ps.executeQuery();
            while(tableResult.next()) {
                String tableName = tableResult.getString("name");
                String comment = tableResult.getString("comment");
                logger.info("tableName:{},comment:{}",tableName,comment);
            }
        }catch (Exception e){
            logger.error("读取表失败",e);
        }finally {
            if (tableResult != null) {
                try {
                    tableResult.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
            if (ps != null) {
                try {
                    ps.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
            if (conn != null) {
                try {
                    conn.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}